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<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>
    <script>
        //git 各个版本自动保存
        
        // gitee.com./edu2act
        
        //编译语言C/C++ 运行效率高
        //执行前提前编译可执行文件或字节码Java和C# 
        // 解释执行JavaScript python开发效率高
        //TS
        //A   AD(更新后PPT)

        //chrome 调试 source调试
        var name = "Lily"
        var person = {
            name:"Jack",
            age:20,
            showInfo:function(){
                var that = this;
                function inner() {
                    console.log("i'm "+that.name);
                }
                inner();
            }
        }
        person.showInfo();
        //watch  断点 this(window 内置函数inner) that 
    </script>
</body>
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